We had a nice stay at Wimonpak's place. It's really small but ok for a few days living in Bangkok. The apartment isn't located in that typical tourist parts of Bangkok and it's really far from the places we wanted to visit but it's just a five minutes walk to the next bus stop (bus to Khao San Road takes about 30 minutes). There are lots of street food places in front of the door. The contact with Wimonpak was very nice too and we got answers very promptly.